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| author | Dave Jones <davej@redhat.com> | 2014-08-29 15:18:35 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-29 16:28:16 -0700 |
| commit | 0c38e1fe0fced6aa06dbf444f7203dd7f325e369 (patch) | |
| tree | cdef74dbbce508e8bfb48b7a8af7e9dd287580a8 /lib/Kconfig.debug | |
| parent | ce8369bcbeeea6dfe24a6c8f60d2fcfce0432830 (diff) | |
| download | lwn-0c38e1fe0fced6aa06dbf444f7203dd7f325e369.tar.gz lwn-0c38e1fe0fced6aa06dbf444f7203dd7f325e369.zip | |
lib: turn CONFIG_STACKTRACE into an actual option.
I was puzzled why /proc/$$/stack had disappeared, until I figured out I
had disabled the last debug option that did a 'select STACKTRACE'. This
patch makes the option show up at config time, so it can be enabled
without enabling any of the more heavyweight debug options.
Signed-off-by: Dave Jones <davej@redhat.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/Kconfig.debug')
| -rw-r--r-- | lib/Kconfig.debug | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 1b233fc67466..a28590083622 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1036,8 +1036,13 @@ config TRACE_IRQFLAGS either tracing or lock debugging. config STACKTRACE - bool + bool "Stack backtrace support" depends on STACKTRACE_SUPPORT + help + This option causes the kernel to create a /proc/pid/stack for + every process, showing its current stack trace. + It is also used by various kernel debugging features that require + stack trace generation. config DEBUG_KOBJECT bool "kobject debugging" |